Sagot :
Answer:
1.Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
2.AUG, as the start codon, is in green and codes for methionine. The three stop codons are UAA, UAG, and UGA.
3.start codon:AUG stop codon:UGA, UAA, and UAG.
4. 1.DNA copying mistakes made during cell division.
2.exposure to ionizing radiation.
3.exposure to chemicals called mutagens, or infection by viruses.
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